Log-rolling device



Jan. 9, 1940 c. w. HUT-CHINSON 2,136,606

LOG-ROLLING DEVICE Filed Sept. 12. 1956 '37 imemn/ 'w-Hutchins 011'- a 115% (BM/WW Patented Jan. 9,1940

LOG-ROLLING DEVICE Charles w. Hutchinson, Milwaukee, Wis.

Application SeptemberlZ, 1936, Serial no. 100,427 g 1' Claim.

This invention appertains toamusement de-,

vices, and'more particularly to a log-rolling sportin'gdevice.

Log rolling is becoming popular as a water sporting and amusement device, ,but communities remote from lumber regions have trouble in obtaining proper logs for the sport. Likewise, considerable difiiculty is experienced in holding the log against floating away, both while the log is in use and out of use. Where attempts are made to anchor the log, the anchor interferes with the free rolling of the log.

It is, therefore, one of the primary objects of my invention to provide a log-rolling device which can be standardized and conveniently shipped to all parts of the country.

Another salient object of my invention is to provide novel means for anchoring the log in such a manner that while the log is effectively held against floating away, free rolling movement thereof is assured.

A further object of my invention is the provision of novel means for connecting the anchoring device to the log and for forming the anchoring device, whereby the anchoring device will readily adjust itself to different depths of water without attention on the part of the user.

A further object of my invention is the provision of a log-rolling device embodying a plurality of sections to permit the convenient shipping of the device, with novel means for rigidly connecting the sections together to insure unitary movement of the sections when the device is in use.

A still further object of my invention is to provide a log-rolling appliance of the above character, which will be durable and eflicient in use,

one that will be simple and easy to manufacture, I

and one which can be placed upon the market at a reasonable cost.

With these and other objects in view, the invention consists in the novel construction, arrangement, and formation of parts, as will be hereinafter more specifically described, claimed,

and illustrated in the accompanying drawing, in-

Figure 4 is a fragmentary longitudinal section through one end of the device illustrating a modified form. of means for anchoring the log in placa I V Figure 5 is a transverse-section through the center of a log-rolling device, "taken substantially on the line 55 of Figure 6, illustrating a further form of means for anchoring the log.

Figure 6 is a fragmentary longitudinal section through the long-rolling device, illustrating the same form of means for connecting the anchor with the log as that shown in Figure 5.

Referring to the drawing in detail, wherein similar reference characters designate corresponding parts throughout the several views, the

letter L generally indicates my improved log-rolling device, which comprises the log proper ID.

The log proper I0 may comprise any preferred number of sections II, all of which have formed therein an axially disposed bore I2 for the r'ecepagainst floating away and still permit the free rotation of the log, I provide a central hub or bearing member [5. This hub or bearing'member I5 rotatably receives the axle I3 and is preferably disposed between the adjacent ends of the innermost sections II of the log proper.

To unite the bearing I5 with the log sections, the bearing can be provided with webs or the like l6, which are forced into the wood of the sections, A bearing ring or collar I1 is fitted on the hub or hearing I5, and this collar has depending therefrom an arm I8, which inturn carries a 22, and consequently the anchor will sink in the water until the same reaches the bottom and weight 22 will be elevated in accordance with the depth of the water. Thus, the logwill keep its place on top of the water irrespective of the rising or falling of the water. I

Due to the provision of the shaft l3, the hub I5, and the collar II, the log proper is allowed to turn freely, and hence the anchor will not interfere in any way with the free use of the log for log-rolling contests. By providing the log proper In in sections, the entire device can be conveniently shipped.

While I have shown the hub or bearing [5 located at the center of the log proper In, it is to be understood that the position thereof can be varied. In Figure 4 I have shown bearings 25 connected to the endof an axle or shaft 26 which extends through a log 21.

a bearing is provided for each end of; the axle. A bearing collar 28 is fitted on the bearing 25 and is held against lateral displacement bymeans of an annular shoulder 29 onthebearing; The bearing collar 28 can then be provided with an arm 3!] for carrying the sheave or pulley (not shown) for the anchor.

In order to permit my anchor to be used.

intermediate the ends of a solid log, I can provide a split bearing collar 3| and a split bearing hub 33. The log 32 is provided with an annular groove 34, which receives the split bearing 33,

In this instance, the log ran be made in one length, if so desired, and

and the sections of the split bearing 32 are securely held in place by fastening screws 35. The split bearing collar 3| can then be placed around the split bearing 33, and the sections thereof are held in position by means of screws 36. Depending from one section of the split bearing collar is a depending arm 3! which can carry the pulley for the anchoring device.

From the foregoing description it can be seen that I have provided a novel and efiicient water sporting device, which will permit the effective rolling of the log without danger of the log being washed away.

Changes in details may be made without departing from the spirit or the scope of this invention, but what I claim as new is:

In awater sporting device, a buoyant member having an annular groove therein intermediate its ends, a sectional bearing sleeve fitted in said groove, with the sections thereof rigidly connected together, a sectional bearing collar fitted around the bearing sleeve with its sections connectedtogether, and means for attaching an anchor to the, collar.

CHARLES W. HUTCI-IINSON. 

